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Earnings / Loss per share (Tables) | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Schedule of Earnings / (Loss) per share |
|  |  | Six months ended June 30,
|  |  | 2017 |  |  | 2018
Income / (Loss) : |  |  |  |  |  |
Net income / (loss) |  | $ | (26,229) |  | $ | 20,628
Basic earnings / (loss) per share: |  |  |  |  |  |
Weighted average common shares outstanding, basic |  |  | 62,188,645 |  |  | 64,170,654
Basic earnings / (loss) per share |  | $ | (0.42) |  | $ | 0.32
Effect of dilutive securities: |  |  |  |  |  |
Dillutive effect of non vested shares |  |  | - |  |  | 298,206
Weighted average common shares outstanding, diluted |  |  | 62,188,645 |  |  | 64,468,860
Diluted earnings / (loss) per share |  | $ | (0.42) |  | $ | 0.32

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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